William h



NITED STATES PATENT OFFICE.

lVILLIAM H. HANNA AND ALBERT H. MORROV, OF SOUTH OMAHA, NEBRASKA; SAIDMORROVV ASSIGNOR TO SAID HANNA.

AXLE-LUBRICATOR.

SPECIFICATION forming part of Letters Patent No. 557,580, dated April'7, 1896.

Application filed August 19, 1892. Serial No. 443,535. (No model.)

To all whom it may concern:

Be it known that we, WILLIAM H. l-IANNA and ALBERT H. MORROW, of SouthOmaha, in the county of Douglas and State of Nebraska,have inventedcertain useful Improvements in AXle-Lubricators; and we do herebydeclare that the following is a full, clear, and exact description ofthe invention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, which form a part of this specification.

This invention has relation to a new and novel improved aXle-lubricatorwhich is more particularly adapted to be used in connection with thatclass of vehicles having hollow axles.

The object of this invention is to provide an axle-lubricator that shallbe provided with a controllable oil -'Inagazine, as will be describedmore fully hereinafter.

In the accompanying drawings, Figure l shows a central sectional view ofa hollow axle, showing the hub in section, embodying our invention. Fig.2 shows a front View thereof. Fig. 3 shows a detached view of thesupporting-tube, while Fig. 4 is a sectional view of the magazine.

A represents a hollow tubular axle, of any suitable size and material,which is provided with the usual tapering axle-spindle B. At its forwardend the spindle is provided with an interior screw-thread B' and the nutO, which threads into the spindle and prevents the hub working o.Vtorking upon the spindle B is the hub D, provided with the usualbearing-box b, which works upon the spindle and is provided with acircumferential chamber m, which communicates with an oil-magazine F bytubes e' e', as is clearly shown in Fig. l. This chamber m of thebearing-box serves as a housing in retaining the lubricant, thefeed-tubes e' e' communieatin g with the same.

Working within the forward threaded end of the spindle B is the tubularmagazine-support E, a detail of which is shown in Fig. 3. In front thismagazine-support is provided with the exteriorly and interiorly threadedcollar e, which works within the threaded forward end of the spindle B.This magazinesupport is further provided with the twooutwardly-extending feed-tubes e' e', which pass through suitableopenings of the spindle and so support the tubes within the forward endof the axle, said tubes preferably extending upward and into the chamberm, above mentioned as being formed by the spindle and bearing-box b.

Removably held within the stationary magazine-support E is the oil orlubricating magazine F, which properly comprises a thin metallic tubedivided interiorly into two chambers l andv 2 by means of the centraldisk g, as is shown in Figs. 1 and 4. At the forward end this tube isprovided with a screw-cap 7L, adapted to thread within the collar e, andat the other end the tube is provided with the solid bottom h'.Revolubly held within the cap h, thecentral disk g, and the bottom h' isthe feed-screw F', preferably of two diameters, as shown in Fig. l, eachdiameter being threaded its entire length. This screw is preferablypositioned slightly to one side of the center and is provided with thesliding packing-heads H' H', which thread upon the feed-screw F', onehead being within each of the chambers l and 2. These heads are providedwith the packing-rings t', so that a snug fit is insured within thechambers. When the screw F' is turned in either direction, the twopacking-heads I-l' H' will be fed either forward or rearward withintheir respective chambers.

The magazine tube has four openings, (marked 7c 7c and lo' 75,) thefirst two, lo 7c, being vent-holes near one end, respectively, of eachof the chambers, and the remaining two near the remaining and preferablyrearward end, respectively, of each of the chambers, the openings k' k'to register with the feedtubes e' e communicating with thecircumferential chamber m.

The double-diametered screw F' is actuated until the disks H' H' withinthe chambers are forced into their farthest rearward position, theforward packing-disk abutting against the central dividing-disk g, whilethe rear disk abuts against the bottom h of the magazine. The screw F isgiven a double diameter, so that it can be readily worked through thefirst and into the second disk H. It

IOO

is understood, however, that, if desired, this screw could be of onediameter, it simply being a mechanical convenience to give the saine adouble diameter, as shown. In this position these disks would close theopeniu gs 7.: 7t,which openings are nothing more or less thanventopenings. The disk g is provided with an opening a; which leads intothe rear chamber 2, the screw-plug n closing this opening, while thefront cap L is also provided with a screwplug n and feedopening 5c. Incharging the magazine it is iirst removed from the spindle. Thescrew-plugs n n are then removed and the packing-heads Il Il are thenforced into their rear extreme positions bymeans of the screw F', whenthe magazine is charged with a suitable lubricant through thefeedopenings @c n: closed by means of the plugs a n. The air-holes 7c 7aare in this position closed by the disk l-l H. Then the axlespindle isto be lubricated, it is simply necessary to turn the screw F, when thedisks Il H' will be fed forward, forcing the oil out of the magazinethrough holes 7c 7;/ into the tubes e e and into the chamber m. Toprevent these chambers l and 2 from becoming air-bound, we have providedthe vent-openings 7c 71:, as is shown in Fig. l. The magazine can bereadily removed and recharged. The axle, if desired, can be providedwith an ordinary sand-cap C, as is shown in Fig. l.

If desired, the supporting-tube E could be eliminated and themagazine-tube could be supported directly within the spindle.

The

axle in this ease could be provided with perforated rings which wouldhave openings coinniunieating with the chamber m. However, we preferusing the device as disclosed.

New having thus described our said invention, what we claim as new, anddesire to secure by United States Letters Patent, is-

l. The combination with a hollow axlespindle, of a double-chamberedlubricatingmaga-zine removably held within said spindle and providedwith air-vents and with feedtubes leading from said magazine to withoutsaid axle-spindle, a feed-screw within said magazine, and headsthreading upon said screw, all substantially as and for the purpose setforth.

2. The combination with a hollow axlespindle, of a tubularmagazine-support within said hollow axle-spindle, a tube leading fromsaid magazine-support to without said hollow axle-spindle, amagazineremovably held within said tubular magazine-support, and having anair-vent and an opening registering with said tube, an operating-screwwithin said magazine and a head removable upon said screw, allsubstantially as and for the purpose set forth.

In testimony whereof we al'iix our signatures in presence of twowitnesses.

XVILLIAM H. IIANNA. ALBERT ll. MORROV. NVitDesses:

A. J. Sonnrr, G. XV. SUES.

